• CPU: Supports Intel i5 / i7 based processors in LGA1156 package.
• Chipset:
  Intel P55 Chipset
  - Supports QPI up to 6.4GT/s
  - Hi-Speed USB (USB2.0) controller, 480Mb/sec.
  - 6 SATAII ports with transfer rate up to 3Gb/s.
  - PCI Master v2.3, I/O APIC.
  - ACPI 2.0 compliant.
  - Serial ATA RAID 0/1/5/10.
  - Integrated AHCI controller.
• Main Memory: Supports four unbuffered DIMM of 1.5 Volt DDR3 1066/1333/1600*/1800*/2000*/2133* (OC) SDRAM, 16GB Max
• Slots:
  3 PCI Express gen2 x16 slots
  - If two graphics cards are installed at PCI-E2 & PCI-E4 slots, these two PCIE x16 lanes will auto arrange from x16/ x0 to x8/ x8
  - PCI-E5 supports PCIE 2.0 x4 speed only
  - When PCI-E5 is in use, all PCIE x1 slots will be unavailable
  - supports ATI Crossfire & NVIDIA SLI
  2 PCI Express gen2 x1 slots
  2 PCI slots, support 3.3V/ 5V PCI bus Interface
• On-Board IDE/SATA:
  One Ultra DMA 66/100/133 IDE controller integrated in JMicron 363.
  - Supports PIO, Bus Master operation modes.
  - Can connect up to two Ultra ATA drives.
  SATAII controller integrated in Intel P55/JMicron 322 / 363 chipset
  - Up to 3Gb/s transfer speed.
  - Supports six SATAII ports by P55
  - Supports two SATAII ports by JMicron 322, support SATA RAID 0/1/JBOD.
  - Supports one eSATA / USB combo port by JMicron 363.
  - Supports AHCI controller with AHCI / SATA RAID 0/1/5/10 by P55.
• Audio:
  Chipset integrated by Realtek ALC889
  - Flexible 8-channel audio with jack sensing
  - Compliant with Azalia 1.0 Spec
  - Meet Microsoft Vista Premium spec
• LAN: Supports two PCI Express LAN 10/100/1000 Fast Ethernet by Realtek 8111DL.
• IEEE1394/FireWire:
  VIA VT6315N chipset
  - Supports up to two 1394 ports. (Rear panel x1, pinheader x1)
  - Transfer rate is up to 400Mbps.
• Crossfire and SLI Ready: Yes
• Internal I/O Connectors:
  - ATX 24-Pin power connector
  - 8-pin ATX 12V power connector
  - CPU / System x 4 FAN connectors
  - CD-in connector
  - Front panel audio connector
  - Front panel connector
  - 1 x chasis intrusion connector
  - 3 x USB 2.0 connectors
  - 8 x Serial ATAII connectors
  - 1 x ATA133 connector
  - 1 x IEEE1394 connector support additional 1 port
  - 1 x GreenPower Button
  - 1 x Reset Button
  - 1 x Power Button
  - 1 x Clear CMOS Button
  - 1 x SPDIF-out connector
  - 1 x D-LED2 connector
  - 1 x TPM module connector
  - 1 x OC Genie Button
  - 2 x Base Clock Control Buttons
  - 1 x CPU Phase LED Panel
  - 1 x Debug LED Panel
• Back Panel I/O Ports:
  - 1 x PS/2 Keyboard
  - 1 x PS/2 Mouse
  - 1 x eSATA/USB Combo port
  - 1 x IEEE1394 port
  - 7 x USB 2.0 ports
  - 2 x RJ45 LAN jack
  - 1 x 6 in 1 audio jack
  - 1 x Optical SPDIF-out
  - 1 x Coaxial SPDIF-out
• BIOS:
  The mainboard BIOS provides "Plug & Play" BIOS which detects the peripheral devices and expansion cards of the board automatically.
  The mainboard provides a Desktop Management Interface(DMI) function which records your mainboard specifications.
• Dimension: 30.5cm(L) x 24.4cm(W) ATX Form Factor
• Mounting: 9 mounting holes.
• Green Compliance: Yes
• Green Compliance Certificate/Authority: WEEE

$20 End-User Mail-In Rebate: MSI is now presenting a mail-In rebate for MSI P55-GD80 ATX Socket 1156 Motherboard. Promotion begins 02/01/10 and ends on 02/28/10. This promotion cannot be combined with any other promotion. Claim your rebate through the rebate form and follow mailing instructions. Note, incomplete forms will be denied as well as forms mailed too late. Manufacturer is not responsible for lost or misdirected mail. The promotion is not retroactive. Click here to download the rebate form.